Guilford, Connecticut
Guilford, Connecticut, in New Haven County, has ZIP code 06437 and area code 203, with 475 as an overlay.
- ZIP code
- 06437
- Area codes
- 203, 475
- County
- New Haven County
- State
- Connecticut
- Time zone
- Eastern Time
- Coordinates
- 41.3154, -72.6968
ZIP codes in Guilford
Area codes for Guilford
- Area code 203
In service since 1947. Shares its area with 475. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
- Area code 475
In service since December 12, 2009. Shares its area with 203. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.
Time zone
Guilford is in the Eastern Time zone.
Towns near Guilford
- Guilford Center4.2 km (2.6 mi)
- Madison6.8 km (4.2 mi)
- North Branford7.3 km (4.5 mi)
- Madison Center8.8 km (5.5 mi)
- Branford10.3 km (6.4 mi)
- Branford Center10.8 km (6.7 mi)
- Northford11.4 km (7.1 mi)
- Killingworth12.1 km (7.5 mi)
Local numbers in area code 203
Looking for a phone number with a Guilford area code? These 203 numbers are for sale through Exclusive Digits. Portable to Verizon, AT&T, T-Mobile and all major US carriers.
- (203) 447-6868Huntington, CT$399View & buy
- (203) 447-6969Huntington, CT$399View & buy
- (203) 533-3232Guilford, CT$399View & buy
- (203) 409-7653Old Greenwich, CTAlso spells POKE, POLE, ROLE$449View & buy
- (203) 705-4000Stamford, CT$449View & buy
- (203) 705-5000Stamford, CT$449View & buy
- (203) 388-3000Stamford, CT$599View & buy
- (203) 716-6666New Canaan, CTAlso spells MOON, NOON$695View & buy
- (203) 859-9999North Haven, CT$699View & buy
- (203) 533-3223Guilford, CTAlso spells FACE$149View & buy
- (203) 716-6556New Canaan, CT$199View & buy
- (203) 716-6661New Canaan, CT$199View & buy
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